Patents by Inventor William Glass

William Glass has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Digital phase-locked loop filter
    Patent number: 5619543
    Abstract: A digital phase-locked loop filter in which the incoming error signals are subject to at least one multiplication by a filtering coefficient before being digitally processed at each clock pulse to provide a filtered signal. The PLL filter includes a circuit which decrements the value of the filtering coefficients at each clock pulse during an initial operation period of the filter.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: April 8, 1997
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventor: William Glass
  • Duplex modem for processing data needed for cancelling far-end echo canceller
    Patent number: 5434849
    Abstract: A duplex modem for processing data needed for cancelling far-end echo includes at least one high-speed processor of the data pump type performing filtering operations and a microcontroller. The data, corresponding to transmitted data and necessary for cancelling far-end echoes, are stored in a memory associated with and controlled by the microcontroller.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: July 18, 1995
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventors: Dominique Vicard, William Glass, Francois Druilhe
  • Process and a circuit for adapting coefficients in a modem equalizer
    Patent number: 5333149
    Abstract: A process and a circuit for carrying out the process for adapting coefficients in a modem equalizer comprises a memory cell for storing a coefficient, an adapter receiving the output of the cell and providing a first signal having a first correction, and an adder receiving the first signal and providing a second signal to the cell. The adder also receives a value k much smaller than 1 having the sign provided by a comparator comparing an initial value of the considered coefficient and its current value.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: July 26, 1994
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventors: Dominique Vicard, William Glass, Francois Druilhe